Characterization of a human hematopoietic progenitor cell antigen
US5843633A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Apr 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K14/705
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
An hematopoietic progenitor cell antigen, and antibodies that specifically bind to the antigen are provided. Expression of the antigen is highly tissue specific. It is only detected on a subset of hematopoietic progenitor cells derived from human bone marrow, fetal bone marrow and liver, cord blood and adult peripheral blood. The subset of cells recognized by AC133 is CD34.sup.bright, and contains substantially all of the CFU-GM activity present in the CD34.sup.+ population. This highly specific distribution of AC133 makes it exceptionally useful as a reagent for isolating and characterizing human hematopoietic progenitor and stem cells. Cells selected for expression of AC133 antigen may be further purified by selection for other hematopoietic stem cell and progenitor cell markers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.